﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
using System.Collections;
using System.Media;

namespace RhythmDetect
{
    public partial class MainWindow : Window
    {
        //文本框检测除错
        private void tbSetBeats_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.F || e.Key == Key.J)
            {
                btnAbout.Focus();
                return;
            }
            TextBox txt = sender as TextBox;

            //屏蔽非法按键
            if ((e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) || e.Key == Key.Decimal)
            {
                if (txt.Text.Contains(".") && e.Key == Key.Decimal)
                {
                    e.Handled = true;
                    return;
                }
                e.Handled = false;
            }
            else if (((e.Key >= Key.D0 && e.Key <= Key.D9) || e.Key == Key.OemPeriod) && e.KeyboardDevice.Modifiers != ModifierKeys.Shift)
            {
                if (txt.Text.Contains(".") && e.Key == Key.OemPeriod)
                {
                    e.Handled = true;
                    return;
                }
                e.Handled = false;
            }
            else
            {
                e.Handled = true;
            }

        }
        private void tbSetBeats_TextChanged(object sender, TextChangedEventArgs e)
        {
            if (tbSetBeats.Text == "")
            {
                beatStop();
                return;
            }
            //屏蔽中文输入和非法字符粘贴输入
            TextBox textBox = sender as TextBox;
            TextChange[] change = new TextChange[e.Changes.Count];
            e.Changes.CopyTo(change, 0);

            int offset = change[0].Offset;
            if (change[0].AddedLength > 0)
            {
                double num = 0;
                if (!Double.TryParse(textBox.Text, out num))
                {
                    textBox.Text = textBox.Text.Remove(offset, change[0].AddedLength);
                    textBox.Select(offset, 0);
                }
            }

            if (Convert.ToDouble(tbSetBeats.Text) < 1)
            {
                tbSetBeats.Text = "1";
                return;
            }

            if (Convert.ToDouble(tbSetBeats.Text) > 400)
            {
                tbSetBeats.Text = "400";
            }

            if (tbSetBeats.Text == "")
            {
                beatStop();
            }

            if (playSwitch == true)
            {
                count = 0;
                mikuCount = 0;
                stopDetect();
            }
        }
    }
}
